Top-down survival shooter where you fight waves of alien enemies. Try to survive and level up as much as possible. 

Story:

IN THE WILD WEST OF THE AMERICAN FRONTIER LIVES A RETIRED GUNSLINGER, KNOWN ONLY AS THE MAN WITH NO NAME, LIVING HIS LIFE AWAY FROM THE LAW AND CIVILIZATION

ONE DAY A LARGE PORTAL APPEARED IN THE SKY AND OUT POURED STRANGE ALIEN LIFEFORMS FROM ANOTHER REALM FAR BEYOND THE MAN'S UNDERSTANDING

WITH HIS HOME UNDER ATTACK FROM THESE NO GOOD ALIEN SCUM, THE MAN WITH NO NAME PICKS UP HIS TRUSTY REVOLVER ONE LAST TIME TO DISH OUT JUSTICE AND DEFEND HIS FREEDOM